Dealership says I'm due for an Engine Tuneup & Transmission Tuneup. 2012 Challenger with 67,200 miles, mostly highway/back roads driving at 60 mph in the country, very little city driving. Dealership says work has to be done to maintain warranty. Would appreciate hearing from others on this. I thought cars didn't normally need a tuneup until 100,000 miles or so. The car seems to be running just fine. Gas mileage steady at 28mpg. Thoughts, please? Thanks!
